FOREST LAKE DAM - NH00297-3442


Incident ID NH00297-3442
Dam Name FOREST LAKE DAM
Downstream Hazard Potential L
State NH
Incident Date 07/18/2021
Incident Type Non-failure
Incident Driver Hydrologic/flooding
Incident Mechanism 1 High Reservoir Level
Incident Mechanism 2 Overtopping
Incident Mechanism 3 Erosion
Incident Description Heavy rainfall resulted in overtopping of the dam causing erosion adjacent to the concrete spillway
Named Hydrologic Event
EAP Enacted (Y/N) due to Incident
Fatalities (Number) 0
Number of People Evacuated 0
Number of Habitable Structures Evacuated 0
Number of Habitable Structures Flooded 0
Other Infrastructure Impacts None
Economic Damages (in $) Unknown
Volume released at failure (ac-ft)
Response Dam was sandbagged until waters receeded
Additional Remarks or Updates
Incident Time
Incident Duration 2 days
Incident Report Produced Yes
Information Sources NHDES DAM BUREAU
Owner Type P
Dam Type REST
Primary Purpose(s) R
EAP NR
Year Completed 1925
Year Modified 0
Dam Height 8 ft
Max Storage (ac-ft) 378 ac-ft
Surface Area (acres) 93 acres
River Name TR ASHUELOT RIVER
Latitude 42.7988
Longitude -72.3697
Regulatory Agency(ies) NHDES DAM BUREAU
NID Number NH00297
Attachments